POLARIMETRY OF THE SUPERLUMINOUS SUPERNOVA LSQ14MO: NO EVIDENCE FOR SIGNIFICANT DEVIATIONS FROM SPHERICAL SYMMETRY

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dc.contributor.authorLeloudas, Giorgos
dc.contributor.authorPatat, Ferdinando
dc.contributor.authorMaund, Justyn R.
dc.contributor.authorHsiao, Eric
dc.contributor.authorMalesani, Daniele
dc.contributor.authorSchulze, Steve
dc.contributor.authorContreras, Carlos
dc.contributor.authorD Ugarte Postigo, Antonio
dc.contributor.authorSollerman, Jesper
dc.contributor.authorStritzinger, Maximilian D.
dc.contributor.authorTaddia, Francesco
dc.contributor.authorWheeler, J. Craig
dc.contributor.authorGorosabel, Javier
dc.date.accessioned2024-01-10T12:41:33Z
dc.date.available2024-01-10T12:41:33Z
dc.date.issued2015
dc.description.abstractWe present the first polarimetric observations of a Type I superluminous supernova (SLSN). LSQ14mo was observed with VLT/FORS2 at five different epochs in the V band, with the observations starting before maximum light and spanning 26 days in the rest frame (z. = 0.256). During this period, we do not detect any statistically significant evolution (<2 sigma) in the Stokes parameters. The average values we obtain, corrected for interstellar polarization in the Galaxy, are Q = -0.01% (+/- 0.15%) and U = -0.50% (+/- 0.14%). This low polarization can be entirely due to interstellar polarization in the SN host galaxy. We conclude that, at least during the period of observations and at the optical depths probed, the photosphere of LSQ14mo does not present significant asymmetries, unlike most lower-luminosity hydrogen-poor SNe Ib/c. Alternatively, it is possible that we may have observed LSQ14mo from a special viewing angle. Supporting spectroscopy and photometry confirm that LSQ14mo is a typical SLSN I. Further studies of the polarization of Type I SLSNe are required to determine whether the low levels of polarization are a characteristic of the entire class and to also study the implications for the proposed explosion models.
dc.description.funderRoyal Society University Research Fellowship
dc.description.funderDanish Agency for Science and Technology and Innovation
dc.description.funderInstrument Center for Danish Astrophysics
dc.description.funderNSF
dc.fechaingreso.objetodigital2024-04-26
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1088/2041-8205/815/1/L10
dc.identifier.eissn2041-8213
dc.identifier.issn2041-8205
dc.identifier.urihttps://doi.org/10.1088/2041-8205/815/1/L10
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77428
dc.identifier.wosidWOS:000366431800010
dc.information.autorucFísica;Schulze S;S/I;237742
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherIOP PUBLISHING LTD
dc.revistaASTROPHYSICAL JOURNAL LETTERS
dc.rightsacceso restringido
dc.subjectsupernovae: general
dc.subjectsupernovae: individual (LSQ14mo)
dc.subjectLINEAR-POLARIZATION
dc.subjectLUMINOUS SUPERNOVAE
dc.subjectLIGHT CURVES
dc.subjectSN 2006AJ
dc.subjectSPECTROPOLARIMETRY
dc.subjectEMISSION
dc.subjectGEOMETRY
dc.subjectGALAXIES
dc.subjectMAGNETAR
dc.subjectSPECTRA
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.titlePOLARIMETRY OF THE SUPERLUMINOUS SUPERNOVA LSQ14MO: NO EVIDENCE FOR SIGNIFICANT DEVIATIONS FROM SPHERICAL SYMMETRY
dc.typeartículo
dc.volumen815
sipa.codpersvinculados237742
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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